Good question Mark. The Composite is a very unique coach, and the Super Standard would be nice also. I've seen MK11 rakes on the Waterford Heuston train in the later years with as many as 3 composites in the set. I have also seen rakes with just Standards, Restaurant, and EGV, As well as the same without a Restaurant. So a rake without Composite or Super Standards wouldn't look un prototypical.
There were no Composites repainted into the Galway livery AFAIK.
Rich,